The Methods of Using the Extruder Screw Elements

The daily maintenance of the screw barrel is a problem that many people in the industry are concerned about, so what are the specifics?


1.The predetermined temperature of the screw element


Do not start the machine when the screw element has not reached the .


2. Prevent metal fragments and debris from falling into the hopper of the screw element of the extruder. 


If processing recycled materials, a magnetic hopper must be added to prevent iron filings from entering the barrel.


3. Make sure that the plastic in the screw element barrel is completely melted 


Make sure that the plastic in the extruder screw elements barrel is completely melted when using anti-salvation, so as not to damage the transmission system parts when the screw element retreats.


4. The remaining material of the screw element barrel should be cleaned


When using POM, PVC, PA+GF and other materials, minimize the degradation of the raw materials, and rinse them with ABS and other nozzle materials in time after shutdown.


5. The molten plastic


When the temperature of the molten plastic is normal, but black spots or discoloration of the molten plastic are constantly found, check whether the screw non-return ring (over apron, meson) is damaged.


6. Plasticization of the screw element


During processing, try to make the material in the barrel of the screw element plasticize evenly, do not let metal foreign matter mix into the material, and reduce the rotating torque of the barrel of the screw element.


7. Avoid the phenomenon of screw idling and slipping


If the machine stops for more than half an hour each time, it is best to close the blanking port and clean the material in the barrel, and set up heat preservation. Avoid the phenomenon of screw idling and slipping.


Our company specializes in the production of parallel and co-rotating modular screw elements, barrels and screws, covering various models from Ø20mm to Ø300mm. After ten years of vigorous development, our company now has a number of advanced CNC machine tools and special processing equipment for screw manufacturing. Now our machining operations have basically realized intelligence and automation. Advanced processing methods, strong technical force, and sophisticated processing technology ensure that the quality and technical indicators of each production fully satisfy customers. If necessary, please consult. 

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